Valve-spring compressor



Feb. 12, 1929.

L. M. HALDE N VALVE SPRING COMPRESSOR Filed NOV- 15, 1927 '2Sheets-Sheet l Feb. 12, 192 9.

' L. M. HALDEN VALVE SPRING COMPRESSOR Filed Nov. 15, 1927 2Sheets-Sheet 2 gmmwz LJZHa lien abbozawq Patented Feb. 12,1929.-

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LEONARD M. HALDEN, or means FALLS, MINNESOTA.

VALVE-SPRING COIMPRESSOR.

Application filed November15, 1927. Serial No. 233,469.

This invention relates to a valve spring compressor and it consists inthe novel teacomprises a lower jaw member having inwardly and upwardlydisposed lugs adapted to receive one end of the spring and an upper jawmember pivotally mounted upon the said lower jaw member. The upper jawmember is provided with upstanding end portions having inturned anddownturned extremities adapted to bear against the upper end of thespring A slide loop is mounted upon the said jaw members and serves tohold the members against spreading movement when the spring is insertedbetween the jaws. A. lever is fulcrumed to the lower member andconnected by means of a'linl: with the upper jaw member. When the saidlever is swung with relation to the lower jaw member, the upper jawmember is swung upon the lower jaw member so that the spring which isreceived between the jaw members is compressed. When the spring has beencompressed, the loop is slid along the jaw members whereby the spring isheld in compressed condition between the jaw members.

In. the accoi'npanying drawings Figure 1 is a side clevational View ofthe valve spring compressor;

Figure 2 is an edge clevational view thereof;

Figure 3 is an enlarged fragmentary sectional view of the compressorshowingthe some applied Figure 4: is an end elevational view of thecinnpressor showing a s n'ing held therein;

Figure 5 is a tramsverse sectional view of the compressor.

As illustrated in the accompanying drawings, the valve spring compressorcomprises a lower jaw member 1. Said member consists of a strip of metalbent between its ends and having spaced side portions. Said jaw memberis provided at its working end with upwardly and inwardly disposed lugs2 upon which one end of a coil spring 3 may rest. An upper jaw member tsimilarly formed,

is pivoted at one end to the jaw member 1.:

at a pointbetween the ends thereof and the member dis provided atitsworlnng end with upstanding end portions 5 having inturned anddownwardly disposed extremt" tics 6. lVhen the con'ipressor is appliedto the spring 3,] the extremities 6 are disposed acrossthe upper edofthe spring. A loop member 7 is slidablo upon the upper and lower jawmembers and may hold thespring 3 in compressed condition. A levee/r8 isful crumed to the lower jaw member 1 and its working end is connected bymeans of a link 9 withthe intermediate portion of the upper jaw member4t. It is apparent that by swinging the lever 8, the jaw meml er may beswung to bring the two members into superposed relation and when thesaid jaw. members are so related, the loop 7 may be slid p in onedirection along the member 1 to hold the members in operative or springcompressed position, or in the opposite direction beyond the end of themember 4:, so that the member 4; may swing with relation to the member 1to inoperative or spring released position. By reason of the fact thatthe upper jaw member is provided with the up standing end portions 5,the spring may be inserted in position upon the'engine in the event thatthe engine is provided with the usual web or flange adjacent thecylinder head.

The opposite side portions of the jaw member 1 are pivoted on a pin 10which passes transversely through the lever 8. The end portions oi thepin 10 extend beyond the outer side surfaces 031? the side portions ofthe member 1 so that the side portions oif'tho said member may spread inorder to receive springs oi? dilierent diameters between their workingends. A pivot pin 11 passes through the opposite side portions of the awmember 1 and also passes through the links 9. The end portions of thepin 11 extend beyond the outer surfaces of the side portions of themember 42 so that the said side portions may spread in order thatsprings of di .Tercnt di ametermay be received between their worlringends. The lug s 2 carried at the ends of the side portions of the member1 are upwardly and inwardly disposed as best shown in Figure at of thedrawing in order that they may engage under and within the lower end ofthe springand consequently when they are appliedtothe spring the sideportions of the member 1 cannot spread upon the pin 10 to such an extentas to permit the lugs 2 to disengage the spring. The-extensions 6 uponthe upstanding portions 5 of the sides of the member 4 are inwardly anddownwardly disposed as best shown in Figure 4c of the drawing and areadapted to engage over the upper convolution of the spring. Thus whenthe spring is compressed the side portions of the member 4 cannot spreadto such an extent as will permit of the extremities 6 disengaging theupper end of the spring.

I claim 1. A valve spring compressor of the character described,comprising a pair of elongated members, one thereof having pivotalconnection with the other for swinging the members into superposedrelation, an actuating lever pivotally mounted upon one of said membersand having link connection with the other thereof for actuating themembers to operative or inoperative position, and means for latchingsaid members in operative position, comprising a substantially U-shapedmember overlying one of said first-mentioned members and having the freeends of the legs thereof turned inwardly to engage beneath the other ofthe first mentioned members and designed when the members are broughtinto superposed relation to he slipped forwardly thereon to look thesame in position.

2. A valve spring compressor comprising a pair of jaw members each ofelongated substantially U-shaped design, one of the jaws ieing shorterthan the other and having its looped end pivotally mounted beneath theof the other aw to bring thet'ree ends of the jaws into subs'antialalinement when the same are brought into superposed relation, relativelylong pivot pins connecting the legs of the jaw members adjacent the freeends thereof, said jaw legs being freely slidable upon the pins passingtherethrough to permit them to spread for engagement about a spring, anda jaw actuating lever mounted upon the pivot pin of one of said jaws andhaving link connection with the pivot of the other jaw, for drawing thefree ends of the jaws together for the compression of a spring engagedtherebetween.

In testimony whereof I hereunto afiix my signature.

LEONARD M. HALDEU.

